Butterfly

Tagged Questions

A sensor is the digital camera's equivalent to film. It contains millions of tiny light-detecting areas called photosites, which convert light into an electric charge. After exposing the sensor to light, this charge is read from each pixel and converted into a digital image.

I'm using a Nikon D3200 - new to photography. Whenever I take photos of the night I always get this yellow mark in the same spot.
I thought it could be a dirty lens so I cleaned it with a microfiber ...

i took a series of pictures yesterday and discovered that shooting around f/13, f/16, there is what appears to be a hair located on the image sensor and is visible in the pictures where the lens is ...

I'm looking at light levels for photography and I'm trying to figure out how much light hits my sensor. There are plenty of tables online which give light levels, but that's only directly relevant if ...

What is the area of CIE 1931 diagram that is being covered by contemporary digital camera sensors? I can find triangles for LCD panels being comapred to sRGB and aRGB and ProPhoto. There are always ...

When setting a white balance configuration, we adjust the temperature and green-magenta shift to a wavelength-intensity distribution of light that correlates most closely with the actual distribution ...

With mobile phone cameras approaching 20 MP while maintaining small sensor sizes, pixels dimensions are typically around 1 μm or lower. What about the lenses? Are they good enough to produce an Airy ...

My ~10 year old Canon PowerShot Digital ELPH S410 (IXUS 430) has been left in a drawer for the past 6 years.
I took it out recently to give to my young son as his first camera, but the pictures have ...

I am using a smartphone for capturing photos and I need to estimate the camera sensor size (mm*mm). I have the resolution (in pixels) and the focal length (in pixels). I can also measure the size of ...

I recently watched Adorama's video on rear curtain sync flash photography. At 4.12 to 4.42, the presenter claims that when using front-curtain sync, the background/long exposure blur will be put on ...

I’m planning on purchasing the Canon EOS Rebel T5/1200D very soon, it’s the only DSLR that fits my budget (other one is the Nikon D3100 which I don’t plan to get). I like everything about the camera ...

my first day with 6D, upgraded form 50D. Wouldn't be pixel peeping but something unusual caught my eye when I opened photos in Lightroom this morning. The color noise pattern is completely different ...

This is the first time that I'm really inspecting the calibration images we were taught to take/use during data reduction, and I've noticed something in all the flat fields.
The image below clearly ...

For example, if a camera has a dynamic range of 44900/10, why would the range of greyscale levels available is equal to 4490? I know that 44900/10=4490 but this kind of reply didn't satisfy me.
Let's ...

I have read that a full frame sensor gives a more shallow depth of field if using the same lens as on a crop frame sensor. Is this true? What I actually want to know is how does this relate to a point ...

As an example, canon 6d full frame has the highest resolution of 5472 x 3648 with a pixel aspect ratio of 3:2 . As this is the highest I assume this is utilising the full size of the sensor.
If the ...

To me the DxOMark sensor rating seems a bit bizarre. They recently rated the sensor of Nikon D3300 to the same score as the Canon 1Dx got which I find unlikely to reflect their performances, and which ...

I'm thinking of upgrading to a D800 and I think I read something about the 36MP resolution of the sensor to be a liability when hand-holding the camera at lower shutter speeds. Unfortunately I cannot ...

I have seen on Dpreview that fujifilm has been granted a patent for a new type of sensor with a strange non-Bayer pattern.
Thinking about it... Is there a camera using a simpler Bayer RGBW pattern? ...

than 3:2, like 16:9 or 16:10? Given the popularity of widescreen TVs and computer monitors with wide aspect ratios, and that most photos are viewed on a screen, rather than printed, and that the eye ...

Another question got me thinking about what is limiting dynamic range in digital cameras. From my understanding the precision of the analogue-to-digital converter, i.e. how many discrete levels it can ...

I am getting half bright-half dark image with horizontal thin black line on my Nikon D5100. Does anyone has any idea ? i am extremely worried. Warranty just expired. I have sample images uploaded at ...